The enterprise case can make a dent in distribution monopolies. I mean, even if Chrome is bundled all over the place for consumers, if an enterprise says "use Firefox" it can distribute it and enforce it.

At my unit of my Uni we have Windows desktops managed by central IT. As a software dev they gave me a bypass to get administrator access but they do enforce that we use Firefox ESR -- I recently got a brand new Firefox but after a while my Firefox does fall behind the times. I develop Firefox-first and let my tester find Chrome bugs, I think we find one less than once a year, over decades I've found that if you develop with the off-brand browser you have very little trouble with the dominant browser whereas if you develop with the dominant browser your product won't work with off-brand browsers. Developers like me have been keeping Firefox viable and probably cumulatively we create more enterprise value for Mozilla than Mozilla's own developers. I think Mozilla is the epitome of the badly run NGO and can criticize just about everything about it but... the cause of competition for browsers is one of the most important tech causes and it's one that isn't entirely lost. I try to only use Firefox except for YouTube which seems to be punishing Firefox users, for a long time I found Firefox compatibility was great but I have seen an increase in problems in the last year which is concentrated in banking and certain e-commerce sites, hotel booking and such. The only trouble we have with it is that we have an internal app that (for better or worse) loads 40,000 rows into a data table and performs really well on Chrome but feels pokey on Firefox.